Saw-clamping device.



W. G. PELLOW.

SAW GLAMPING DEVICE.

APPLICATION FILED MAR. 18, 1914,

Patented Feb. 16, 1915.

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W. G. PELLOW.

SAW GLAMPING DEVICE.

APPLICATION FILED MAR.18, 1914.

1JQ@,89'?., Patented Feb. 16, 1915.

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INVENTOR.

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L WILLiAM e. FELLOW, 0FKANSAS-GITYyMISSOURi;

SAW-GLAMPING DEVICE;

Specification of Letters Patent.

Patented rec. is, rare.

Application filed March 18, 1914. Serial No. 825,723.

To all whom it may concern:

Be it known that 1, WILLIAM G. PELLOW, a citizen of the United States,residing at Kansas City, in the county of Jackson and State ofMissouri,have invented certain new and useful Improvements inSaw-Clamping Devices, of which the following is a specification.

This inventionrelates to saw clamping devices and aims to provide animproved construction of means for retaining saws in the proper positionrequired when filing the same. To this end the invention comprises adevice having convenient means associated with one side thereof and withone of the saw clamping jaws for clamping the device to a suitableworkbench; an improved mounting of the jaws whereby they may be movedrelatively to the remainder of the device for folding. the same intosmaller compass; and a simplified construction of means for operatingone of the jaw carrying mem bers.

With these objects in view, the invention comprises certain novel andpeculiar features of construction as hereinafter described and claimed;and in order to afford a full and clear understanding thereof, referencewill be had to the accompanying drawings, forming a part of thisspecification, and in which Figure l is a top plan view of a sawclamping device embodying the present im provements; Fig. 2 is a frontelevation of the same, with dotted lines representing the foldedposition of one of the saw clamping jaws; Fig. 3 is a side elevation ofthe device, partly broken away, and Fig. 4 is a similar view looking inthe opposite direction and showing the open position of the sawclampingjaws; Fig. 5 is a rear elevation of the device; Figs. 6 and 7are broken perspective views of the front and rear saw clamping jawsrespectively Fig. 8 is a perspective View of the adjustablebench-clamping member; Fig. 9 is a perspective view of the lever forcarrying one of the saw clamping jaws; Fig. 10 is a fragmentaryperspective view of the upper end of one of the arms of the yokemember;and Fig; 11 is a perspective view of the lever for operating thelever which carries the movable saw clamping jaw.

Referring to said drawings, the main body of the device comprises a yokemember A, the rear arm of which is provided with a fixed bench-clampinglug a, corrugated on ltsunder surface (see Fig. 10) for engagement withthe top surface of the edge of a work-bench orstand (not shown). Forcooperatlng with this lug u by engagement with the under surface of theedge of the work-bench there is provided a movable clamping member whichcomprises a sliding yoke F carrying a clamping screw 9 proylded with aswivel cap it, said yoke F being mounted forv vertical movement alongthe rear arm of the member A, the rear face of which is formed with rackteeth a. The mterior faces of the yoke F are suitably curved (see Figs.4: and 8) to permit rocking of the yoke F vertically upon the rear armofthe member A. for the purpose of lifting a tooth f depending from theyoke F out of engagement with the teeth of the rack and therebyadjusting the yoke F into proper positlon corresponding to the thicknessof the Work-bench to which the device is to be applied.

The front arm of the yoke member A accommodates a lever B which ispivoted upon a pin 9' at the upper end of said arm, and the lower end ofthe lever is provided with a slot 2) 1nto Which'projects an eccentricboss w formed on one face of a lever C, fulcrumed by means of a pin 70within the base of the yoke member A. The lever C is equipped with asuitable pin Z for manual engagement and is so mounted with relation tothe lever B that the upper end of. the latter will be moved forward uponraising of the lever C,,while reverse movementof lever G will swinglever B in the opposite direction for opening the saw clamping jaws (of.Figs. 3 and 4).

The upper end of the lever B and also the upper end'of the rear arm ofthe yoke A are each provided with a pin openingo extending in adirection from front to. rear for the purpose of accommodating pins 21,which serve as means for connecting the front saw clamping jaw D and therear saw clampin jaw E, respectively, to said lever B and said rear armof the yoke A. Each of these clamping jaws is provided with a dependinglug 00 having a slot r slidingly and pivotally engaging one of the pins2'; and each of said jaws is also provided with a pin Q which, in thecase of the clamping jaw D, is adapted to be seated in a notch 8 formedin the upper end of the lever B whenever said jaw D is in operative orhorizontal position. In

the horizontal position of the rear clamping jaw E, its pin Q rides intoa recess a in the upper end of the rear arm of the member A (see Fig.10), and to cooperate with said pin Q and its recess n in limiting theswinging of jaw E into horizontal position a lug y 'is formed on the awE in position to engage the side of said rear arm adjacent its upperend. The rear saw clamping jaw is also formed near its free ends withrearwardly extending bracket arms t having angular shoulder portions asclearly illustrated in Figs. 3, 4' and 7, for the purpose of engagingthe upper corner of the edge of the work-bench and thereby firmlybracing the device upon the opposite sides of the. bench clamping means.In case it should be desired to secure the device more or lesspermanently to the work-bench, the bracket armsare provided with theopenings p, and the member A with the opening m, for accommodatingsuitable fastening means for so attaching the device.

It will thus be apparent that a simple and eflicient construction hasbeen devised for carrying out the objects of the invention, the rear armof theyoke A forming the main body of the device having a convenientlyadjustable means for clamping the device in working position, and asimple operating means being provided for swinging the movable sawclamping jaw; while by slightly lifting the front saw clamping jaw todisengage its pin 2' from the notch s, it may be swung into verticalposition as represented by the dotted lines in Fig. 2,the rear sawclamping aw requiring only to be swung laterally into such positionafter it has been disengaged from the edge of the work bench. Moreover,the provision of the bracket arms t in connection with the rear clampingjaw E affords a very efficient bracing means for the device whether thesame is to be applied to the work-bench either temporarily orpermanently.

1. A saw clamping device comprising a yoke member, a movable jawcarrying member mounted on one ofthe arms ofsaid yoke member, the otherarm of said yoke'member having a rack formed thereon, a jaw pivoted tosaid other arm and provided with a bench clamping portion, and a movablebench-clamping member adapted to cooperate with said bench-clampingportion of said jaw and provided with a tooth for engagement with saidrack. v

2. A saw clamping device comprising a yoke member, and a movable jawcarrying member mounted on one of the arms of said yoke member, theother arm of said yoke member being provided with adjustablebenclrelamping means and with a jaw having bench-engaging shouldersadjacent its opposite ends for bracing said device on opposite sides ofsaid bench-clamping means.

3. A saw clamping device comprising a yoke member, and a movable jawcarrying member mounted 011 one of the arms of said yoke member, theother arm of said yoke member being provided with a jaw and withadjustable bench-clamping means below said jaw, the latter beingpivotally mounted upon a horizontal axis and provided with angularbench-engaging shoulders adjacent its opposite ends for bracing saiddevice on opposite sides of said bench-clamping means.

l. In a saw clamping device, the combination of a yoke member, a leverpivoted at the upper end of one of the arms of said member and providedwith a notch in its upper end and with a horizontal pivot pin below saidnotch, a saw clamping jaw having sliding pivotal engagement with saidpin and provided with a second pin adapted to be seated in said notch,and a movably mounted saw clamping jaw carried by the other arm ofsaidyoke member.

5. In a saw clamping device, the combination of a yoke member, a movablejaw carrying member carried by one of the arms of said yoke member, ahorizontal pivot pin carried by the upper end of the other arm of saidyoke member, said other arm having a laterally opening recess overlyingsaid pin, and a saw clamping jaw having sliding pivotal engagement withsaid pin and provided with a second pin adapted to be seated in saidrecess.

6. In a saw clamping device, the combination of a yoke member, a movablejaw carrying member carried by one of the arms of? said yoke member, ahorizontal pivot pin carried by the upper end of the other arm of saidyoke member, said other arm having a laterally opening recess overlyingsaid pin, and a saw clamping jaw having sliding pivotal engagement withsaid pin, said jaw being provided with a second pin adapted to be seatedin said recess and with a stop lug for engagement with said other arm tocooperate with said second pin in limiting the swinging movement of saidjaw into horizontal position.

WILLIAM G. PELLOVV.

Witnesses AGNES E. OLOUGHLIN, NICHOLAS C. BERBAUM.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. G.

